Patents by Inventor Masayuki IIZUMI

Masayuki IIZUMI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cylinder head, cylinder block, internal combustion engine, and method for manufacturing cylinder head
    Patent number: 11994084
    Abstract: The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: May 28, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Masayuki Iizumi, Motoi Kawashima, Takuya Kumagai, Makoto Sakaguchi, Kazunori Sawazaki, Hideho Narita, Ryuji Katayama
  • CYLINDER HEAD, CYLINDER BLOCK, INTERNAL COMBUSTION ENGINE, AND METHOD FOR MANUFACTURING CYLINDER HEAD
    Publication number: 20230358189
    Abstract: The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).
    Type: Application
    Filed: July 19, 2023
    Publication date: November 9, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Masayuki IIZUMI, Motoi KAWASHIMA, Takuya KUMAGAI, Makoto SAKAGUCHI, Kazunori SAWAZAKI, Hideho NARITA, Ryuji KATAYAMA
  • CYLINDER HEAD, CYLINDER BLOCK, INTERNAL COMBUSTION ENGINE, AND METHOD FOR MANUFACTURING CYLINDER HEAD
    Publication number: 20230128222
    Abstract: The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).
    Type: Application
    Filed: April 15, 2021
    Publication date: April 27, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Masayuki IIZUMI, Motoi KAWASHIMA, Takuya KUMAGAI, Makoto SAKAGUCHI, Kazunori SAWAZAKI, Hideho NARITA, Ryuji KATAYAMA